From 9a34f73fb75531507760b957407fb55278b38ae8 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Thu, 26 Jun 2014 12:40:33 +0530
Subject: [PATCH] documentation: dt: omap: crossbar: Add description for
interrupt consumer
The current crossbar description does not include the description
required for the consumer of the crossbar, a.k.a devices whoes events
pass through the crossbar into the GIC interrupt controller.
So, provide documentation for the same.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Link: https://lkml.kernel.org/r/1403766634-18543-16-git-send-email-r.sricharan@ti.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
.../devicetree/bindings/arm/omap/crossbar.txt | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/omap/crossbar.txt b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
index a6e462f88889..ce7d01d86705 100644
--- a/Documentation/devicetree/bindings/arm/omap/crossbar.txt
+++ b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
@@ -36,3 +36,20 @@ Examples:
ti,irqs-reserved = <0 1 2 3 5 6 131 132 139 140>;
ti,irqs-skip = <10 133 139 140>;
};
+
+Consumer:
+========
+See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt and
+Documentation/devicetree/bindings/arm/gic.txt for further details.
+
+An interrupt consumer on an SoC using crossbar will use:
+ interrupts = <GIC_SPI request_number interrupt_level>
+request number shall be between 0 to that described by
+"ti,max-crossbar-sources"
+
+Example:
+ device_x@0x4a023000 {
+ /* Crossbar 8 used */
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ ...
+ };
--
2.34.1